ekaterinadimitrova2 commented on code in PR #1758:
URL: https://github.com/apache/cassandra/pull/1758#discussion_r931550401


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conf/cassandra.yaml:
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@@ -992,6 +992,8 @@ compaction_throughput: 64MiB/s
 # are completely written, and used in place of the prior sstables for
 # any range that has been written. This helps to smoothly transfer reads 
 # between the sstables, reducing page cache churn and keeping hot rows hot
+# Set sstable_preemptive_open_interval to null for disabled which is 
equivalent to the sstable_preemptive_open_interval_in_mb
+# being negative

Review Comment:
   `I was asking if sstable_preemptive_open_interval_in_mb could set a new 
sstable_preemptive_open_enabled entry as well as 
sstable_preemptive_open_interval.`
   No, currently we map one or more old names to only one new property. 
   
   `If you have a fix for setting null and don't need to create an enabled flag 
I'm fine with that. I thought you were saying you might need to create on to 
resolve this problem.`
   I created a quick one by special casing this particular property to be able 
to set it to null even if the default value is not null. So I will need to 
figure out then only the VT Converters
   



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